Aftermarket idle air control

gtir_woody

moderator

Posts : 4499Join date : 2014-07-22Location : Australia

I was wondering if anyone could provide some thoughts. I was having problems with my idle control on the dyno (before the engine broke ) and im thinking it might have something to do with the piping. Keep in mind im running a single throttle body and not quads.

The first picture is my current set-up. Im thinking what could be wrong is the inlet hose into the manifold? Maybe I should use the inlet into each port on the manifold?

Now the second thing I was thinking was the valve is back to front? there are no markings on it, so I presumed it was the right way at the time.

mike74

Posts : 560Join date : 2013-09-24Age : 43Location : Aberdeen

So whats It actually doing wrong then, lumpy idle or stalling?I personally wouldn't think having the valve back to front would make any difference, its not like its got multiple ports coming out to different components, just a straight through.To eliminate this as a possible cause though you could always pipe the valve the other way round to see if its any different.It could be that the valve is maybe too small or even sticking slightly? Have you tried actuating it by connecting it to a battery to see how it reacts?Is it just a simple on/off type valve or is it controlled like a boost controller valve, ie with some sort of duty cycle?